Package has been submitted using Unity 3.5.0, 5.0.0, 5.3.3, 5.4.0, 5.5.1, 5.6.0, 2017.1.0, 2017.2.0, 2017.3.1, 2017.4.8, 2018.1.0, and 2018.2.1 to improve compatibility with the range of these versions of Unity